MITSUMI
Temperature Sensor for I
2
C BUS MM3286 Series
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
Temperature Sensor for I
2
C BUS
Monolithic IC MM3286 Series
Outline
This IC is used as a digital temperature sensor that supports I
2
C BUS and has the built-in temperature
sensor and -∑ type A/D converter. This IC is always accessible for acquiring the temperature data, and it
can detect abnormal temperature because it has a separate open drain output terminal that can operate as
thermostat.
This IC features low consumption current and has the interface that supports I
2
C BUS, and thus it is suitable
for a variety of applications.
Features
1. Low consumption current (75µA typ.)
2. Shutdown mode to minimize consumption current
3. Interface supporting I
2
C BUS
4. Capable of carrying up to 8 ICs in the bus.
5. Thermostat function (The number of detections is programmable up to 6 times.)
6. Temperature data has 9-bit resolution in which 1 LSB is 0.5°C.
Package
SOP-8D
Applications
1. LCD TV
2. PC
3. PC server/Network server
4. System temperature monitoring
5. Equipment OA
MITSUMI
Temperature Sensor for I
2
C BUS MM3286 Series
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
Block Diagram
Temperature
sensor
9-bit -∑ type A/D converter
Configuration
register
TOS register
THYST register
Pointer register
I
2
C interface
Temperature
detection circuit
SDA
SCL
A0
A1
A2
VDD
GND
O.S.
Pin Assignment
1432
8567
SOP
-
8D
(TOP VIEW)
1 SDA
2 SCL
3 O.S.
4 GND
5 A
2
6 A
1
7 A0
8 VDD